16.5″ 45 ACP 1:16 Twist 4150 Barrel

Description

This 16.5-inch barrel is chambered in 45 ACP, providing a dedicated platform for builds requiring this specific cartridge. Constructed from 4150 Chrome Moly Vanadium steel, it offers the structural integrity and heat resistance necessary for reliable operation. The barrel features a straight profile, which contributes to a balanced weight distribution and a streamlined aesthetic. It is finished with a black Nitride coating, providing corrosion resistance and a durable surface that withstands the rigors of repeated firing. The barrel weighs 1lb 6.8 oz, a specification that influences the overall balance of the upper receiver assembly. ACP 1:16 Twist rate stabilizes standard 230-grain projectiles effectively, ensuring consistent performance with typical 45 ACP loads. The muzzle end is threaded 5/8 by 24, allowing for the attachment of compatible muzzle devices such as compensators or flash hiders. The solid pattern indicates a continuous, uninterrupted exterior without accessory rails, suitable for builders seeking a clean look or planning to install separate handguard components. This barrel is designed for integration into custom AR-15 style piston or direct impingement systems, serving as the core component for precision chambering and gas system alignment. The 16.5-inch length offers a compromise between velocity retention and manageable overall length for various upper receiver configurations.